Removable sash window unit



Dec.- 4, 1956 F. s. NlcoLL. JR

REMovABLE: sAsH wmnow UNIT 2 Sheets-Sheet 2 Filed Dac. 51, 1954 50% mf n FIG.2

FIGA FRANK S. NICOLL JR.

JNVENTOR. BMM AT RNE? United States Patent O REMOVABLE SASH WINDOW UNIT Frank S. Nicoll, Jr., Baltimore, Md.

Application December 31, 1954, Serial No. 479,081

3 Claims. (Cl. 2052.2)

This invention relates to builders materials and more particularly to improvements in vertically sliding window counterbalancing yand easy removal of sliding sash from its frame.

The conventional sliding sash use many types of countenbjalance, one `of which ifs the vcoiled ribbon spring connected to the lower end olf the sash and with its free end permanently ailixed `to the window lframe. To remove the sash from a window `trarne using :this Atype of construction it is necessary to `remove .parts of the window frame and remove the nail or screw phat -astens the free end of the ribbon spring to the window frame. Alfter several removals of `the `sash from .the frame for washing .the `windows etc. the removable parts of the frame become mutilated Iand worn out and unusable.

This linvention has 4among its objects the production of a 'balanced and removable window unit :comprising a frame having a floating jamb Weather-strip cushioned by a backer .spring and weather stop -to allow the sash to be angularly positioned in the window frame and to depress the floating j-amlb weatherstrip and hacker spring and weather stop sutiiciently to allow the sash to be slidably positioned in said frame without removing any parts of the window frame and at the same time to be able to engage or `disengage `the `free end olf the balance spring from the window trame `as required.

I-t is a further object of this invention to provide a new and improved oating jamb weatherstrip that will have `a balanced `support plate that will support the full width of the oating jarnb `weat-herstrip and project therethrough to engage with the free end of the balance spring attached to the sash.

A further object of the invention is to provide a new and improved removable sash window unit having a window frame and sash units that will be `weatherproof and have depressible portions to enable vthe sashes to be snapped into or out of place without removing any parts of the frame, and to removably position :the tree ends of ,the balance springs to said window `frame.

Other objects will become apparent as the invention is more fully set forth.

Por `a clearer understanding and .depiction of the invention, reference is made to lthe accompanying drawings wherein a particular form of .the invention is shown. These drawings in lconjunction with the following description explain its preferred construction, indicate its principles and describe its operation, while the claims included show `the scope of the invention.

Referring to the drawings:

Figure l is a front inside elevation of the removable sash window units and frame embodying this invention:

Figure 2 is a `sectional view taken along line 2--2 of Figure l;

Figure 3 is a sectional view `taken along line 3--3 of Figure 2; partly in section :to show a coiled balance or ribbon spring attached to a floating jam-b weatherstrip, ready 'for operation of a sash in the window frame.

Figure 4 is a similar view to that shown in Figure 3 2,772,449 Patented Dec. 4, 1956 except the free end of a balance spring has been removed `from the adjacent weatherstrip and is held in stretched position on ,a bracket attached lto the associated sash and the figure shows the position of the 'free end of the balance spring in relation yto lthe sash at the time of removal from or replacement of the sash in -the window fname;

Figure 5 is a plan view looking in the direction of the arrows shown in Figure 3; and

Figure 6 is a view looking in the direction of arrows 6--6 shown in Figure 4, the dotted lines representthe position of `weatherstrip yand backer spring and Weather stop when compressed;

Figure 7 `is a plan view of the spring bracket and stiilener plate;

Figure 8 is a front elevation of Figure 7; and

Figure 9 is a section-a1 view taken `along line 9-9 of Figure 8.

Similar reference numerals refe-r to similar parts throughout the drawings.

Referring now `by characters or reference numerals `to the drawings, from @which it is understood the invention may be applied to any sliding Window or door yand as an example the drawings show a window with an upper sash lll and a lower sa'sh 11 slidalbly mounted in la frame 12. Each sash has a cut out portion 13 :to receive a coiled balance spring 14 and its tree end i5 which is fitted with a hole 16 and elongated slot 17 to enable the rtree end of the spring to 'be attached -to a hook 13 `formed on a balance vspring bracket and stiener plate 19. The combined balance spring bracket and stiffener plate 19`is provided with two hooks itil and .two tongues 42` (as shown in Figs. 7, 8 :and 9) which project .through slots 43 and 44 in a oating jamb weatherstrip 20 (shown in Figs. 3 and 4) and are easily attached or removed without the use of tools, rivets, welding etc. A balance spring engaging support 21 is positioned in .the upper end of the vcut out portion" 13 of each sash, and engages the detaohing rivet 22 affixed to the Iadjacent 'balance spring 14 `and Iraises `the -free end 15 of the spring 14 `so the hook 18 `olf the adjacent bracket and stiffener plate 19 can pass through .-the hole 16 and slide in the elongated slot 17 and anchor the yspring .to the floating jamb weatherstrip Ztl. The frame 12 comprises side rails 23 and 24, a sill plate 2.5, an upper plate 26, and an inner trim 27. The side rails 23 and 24 are spaced from :the trim 27 by spacer strips 28 and 29. A `well 30 is formed in `the side rail 23 by `spacer strip 28 and 'front spacer 31 and a quarter molding 32 that runs around the frame t2. A backer spring weather stop 33 is fastened in the well 30 against the `side rail 23 preferably by nails or screws 34 and lits flared ends 35 press against the rear wall 36 of the iloating jamJb weatherstrip 2li and force it outwardly against the adjacent vertical side of each sash. The floating jarnb `weatherstrip 20 is provided at each end with turned-up edges 37, ribs 38, and la center raised section 39, and holes are positioned at predetermined locations in .the .center raised section 39 `that will not Conil-ict with the travel of the sashes and are vto receive screws 40 to control the outward movement of the floating jarnb weatherstrip 20. The ribs 38 limit lthe side movement of the sashes and create a pocket 41 .to provide a free passageway for the travel of the balance springs 14. The side rail 24 has a jamb weatherstrip 2@ lined thereto `which guides one side ot each sash in its vertical travel, lbut is not compressible, as is its opposite member attached to side rail 23.

ln the operation of this invention the free end 15 of each balance spring 14 may be pulled out 4and its rivet 22 positioned `against the end of the adjacent balance spring engaging support 211, the sash is .then tilted sidewise with the inner end pressing .against the depressible oating jamb weathers-trip attached lto side rail 23 until it and the backer spring and weather stop 33 are depressed sufficiently to allow the sash :to 'be positioned properly vin between both of the oating and xed jamb weather strips 20. The sash is then raised until the hole 16 in the free end of the balance spring 14 is aligned with the hook 18 on the spring bracket and stilener plate 19 and is engaged therewith, the sash is then lowered and the walls of `the elongated slots 17 slide into engagement with the hooks 18 and remains positioned thereon. The sashes may then -be raised and lowered in the :same 'manner as is used for any other lbalanced sash, and will always remain in that position, and in .addition to their self balancing features there is provided `a ,free riding sash that is weatherproof .and non-ibiinding. To remove a sash from the frame, the sash is raised or lowered as the case may be, until the head of the detaching rivet 22 cornes in contact with the end of the Ibalance spring engaging support 12-17 the sash is then raised so the hook 18 will slide out of `the elongated slot 17 and into .the hole 16 and the free end 15 of the spring 14 is disengaged from the hook 18 and is moved away `from it, the sash is then presse-d to the left, to compress hacker spring and weather stop `33 andthe right side of the sash is pul'led inwardly and out of the frame and the sash is then removed for washing the windows etc.

While but one general form of the invention is shown in the drawings and described in the speeieation, it is not -desired to limit this application for patent .to this partisular form as it is appreciated that other forms orf construction could :be made that would use the same principles and come within the scope of the appended claims.

Having thus Idescribed the invention, what is claimed ISI `1. In -a window structure, the combination, with a window frame having `a pair of side stiles, of a set of sashes and means removably retaining said slashes in said frame for vertical movement therein; Isaid means :comprising a pair of jam'b devices, one tiXedly secured to one of said stiles and the other jamlb device iloatingly mounted on the other stile of said window iframe, resilient means urging said floating j-amib away from said second stile, each of said jamb devices providing guide channels for the oppositely disposed stiles of each sash, a stiiener plate secured to the upper rear portion of said oating jarnb, .a set of hooks located one in each guide channel of said floating jamb and extend-ing through fthe latter and secured to said stiffener plate, said stiffener plate having a set of tongues integral therewith and projecting through said floating jamb one each into `one of said guide 4channels of the floating jantb, each sash having a channel facing said floating jamb, .a set of counterbalance springs for suspending said sashes at desired elevations 4in said window `frame, means in Ithe channel of each sash securing to the latter one end of a counterhalance spring, a rivet secured to each of said springs adjacent to .the upper end thereof, .a support member located at the upper end of .the channel in each sash and having an end engageable with one of said rivets, an open-ing in each counterbalance spring above such rivet, each support member by engaging the rivet on the spring adjacent to said support member being adapted, when the sash having said .support memib'er is raised to the proper level, to carry the spning to a position in which the opening in the spring can be passed over the adjacent hook.

2. A window structure of the type set forth in claim 1, in which said hooks and said tongues hold the stiener plate on said Hoating jamb.

3. A window structure olf the type set forth -in claim 2, in which said hooks on the stiiener plate have enlarged heads spaced from the webs of the guide `channels in the olating jamb and the openings in said counterbalance springs having enlarged portions at the lower ends and narrow slots extending upwardly from said enlarged portions, whereby said enlarged portions may be slipped over the heads oi said hooks and the slots may then suspend the springs from the portions of the hooks located inwardly of said heads.

References Cited in the file of this patent UNITED STATES PATENTS 2,677,156 Holmes May 4, 1954 

